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Bug #17644

Updated by nobu (Nobuyoshi Nakada) about 4 years ago

`Ripper.lex` Ripper.lex fails with syntax error and heredoc: 

 ``` 
 $ cat t.rb 
 require "ripper" 
 s = <<~EOF 
     foo 
   end 
   <<~EOS 
     bar 
   EOS 
 EOF 
 p Ripper.lex(s) 
 $ ruby t.rb 
 /Users/shugo/.rbenv/versions/master/lib/ruby/3.1.0/ripper/lexer.rb:110:in `each': undefined method `pos' for [#<Ripper::Lexer::Elem: on_heredoc_beg@3:0:BEG: "<<~EOS">, #<Ripper::Lexer::Elem: on_ignored_sp@4:0:BEG: "    ">, #<Ripper::Lexer::Elem: on_tstring_content@4:2:BEG: "bar\\n">, #<Ripper::Lexer::Elem: on_heredoc_end@5:0:BEG: "EOS\\n">]:Array (NoMethodError) 
 Did you mean?    pop 
         from /Users/shugo/.rbenv/versions/master/lib/ruby/3.1.0/ripper/lexer.rb:110:in `sort_by' 
         from /Users/shugo/.rbenv/versions/master/lib/ruby/3.1.0/ripper/lexer.rb:110:in `lex' 
         from /Users/shugo/.rbenv/versions/master/lib/ruby/3.1.0/ripper/lexer.rb:52:in `lex' 
         from t.rb:9:in `<main>' 
 ``` 

 It seems that this bug was introduced by commit:69d871eeeb2. 69d871eeeb2. 

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